Audio decoding device of control conversion of real-time audio track

Abstract

The invention discloses an audio decoding device with configurable control conversion of a real-time audio track, in the technical field of digital audio processing. The audio decoding device comprises an audio track control unit, an address control unit, a logical calculus unit and a coefficient storage unit, wherein the audio track control unit is respectively connected with the coefficient storage unit and the address control unit and respectively used for outputting configuration parameter information and original audio information, the coefficient storage unit and the address storage unit are respectively connected with the logical calculus unit and used for outputting logic parameters and data addresses, and the logical calculus unit receives PCM data outputted by a decoder and outputs PCM sample values. The audio decoding device of control conversion of the real-time audio track realizes direct control and conversion of a decoding result, and obtains an anticipant output. The audio decoding device has the advantages of simple logic module, convenience for realizing address block operation in parallel, rapid conversion, synchronization and true time with a system on chip, and no delay.

Description

technical field [0001] The invention relates to a device in the technical field of digital audio processing, in particular to an audio decoding device with configurable real-time channel control conversion. Background technique [0002] Natural sounds are represented by audio files of different channel formats after being transformed into digital audio due to the difference in the sound source of the analog signal, the direction in which the sound is produced, and the distance from the human ear. At present, the form of digital audio is composed of monophonic, binaural stereophonic and surround stereophonic. Monophonic audio refers to the audio signals from different directions are mixed and recorded by the recording equipment, and then played back by a speaker. Two-channel audio is to use two speaker devices at an angle to each other. Each speaker device is provided with a signal from a single channel. The signal in the channel imitates the biological principle of the soun...

AI Technical Summary

Problems solved by technology

[0021] However, this prior art can only target audio coding standards in several formats, and depends on the audio system to determine the reproduction mode, which is poor in flexibility and is not conducive to the expansion after the emergence of new audio standards. application, and the channel transformation algorithm involved in this processing method only covers matrix operations, and the current audio algorithm contains more and more nonlinear algorithms, so it cannot reproduce audio with better quality

Most importantly, the audio channel conversion algorithm in this processing method is only composed of its stored default algorithm and cannot be configured by the user, so the flexibility is extremely limited

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